math destroyer test 1 #10

question presents a circle in a circle (two circle sharing a common center). The inner circle radius = x inches. outer circle width = 6 inches. Find the expression that represents the area of the walkway in square inches. (area of inner circle + area of outer circle) - (area of inner circle) = area of outer circle (the area of the inner circle + area of outer circle) = (pi)(x+6)^2 (the area of inner circle) = (pi)(x^2) Book solution states that the... math destroyer test 1 #10
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